Fix common english misspellings

cmd/prometheus/main.go

@@ -241,7 +241,7 @@ func reloadConfig(filename string, rls ...Reloadable) (err error) {
 		}
 	}
 	if failed {
-		return fmt.Errorf("one or more errors occured while applying the new configuration (-config.file=%s)", filename)
+		return fmt.Errorf("one or more errors occurred while applying the new configuration (-config.file=%s)", filename)
 	}
 	return nil
 }

promql/parse.go

@@ -48,7 +48,7 @@ func (e *ParseErr) Error() string {
 	return fmt.Sprintf("parse error at line %d, char %d: %s", e.Line, e.Pos, e.Err)
 }
 
-// ParseStmts parses the input and returns the resulting statements or any occuring error.
+// ParseStmts parses the input and returns the resulting statements or any occurring error.
 func ParseStmts(input string) (Statements, error) {
 	p := newParser(input)
 

promql/parse_test.go

@@ -1366,9 +1366,9 @@ var testExpr = []struct {
 		fail:   true,
 		errMsg: "expected type vector in call to function \"floor\", got scalar",
 	}, {
-		input:  "non_existant_function_far_bar()",
+		input:  "non_existent_function_far_bar()",
 		fail:   true,
-		errMsg: "unknown function with name \"non_existant_function_far_bar\"",
+		errMsg: "unknown function with name \"non_existent_function_far_bar\"",
 	}, {
 		input:  "rate(some_metric)",
 		fail:   true,

retrieval/scrape_test.go

@@ -137,7 +137,7 @@ func TestScrapePoolReload(t *testing.T) {
 		ScrapeInterval: model.Duration(3 * time.Second),
 		ScrapeTimeout:  model.Duration(2 * time.Second),
 	}
-	// On starting to run, new loops created on reload check whether their preceeding
+	// On starting to run, new loops created on reload check whether their preceding
 	// equivalents have been stopped.
 	newLoop := func(ctx context.Context, s scraper, app, reportApp storage.SampleAppender) loop {
 		l := &testLoop{}
@@ -163,7 +163,7 @@ func TestScrapePoolReload(t *testing.T) {
 	}
 
 	// Reloading a scrape pool with a new scrape configuration must stop all scrape
-	// loops and start new ones. A new loop must not be started before the preceeding
+	// loops and start new ones. A new loop must not be started before the preceding
 	// one terminated.
 
 	for i := 0; i < numTargets; i++ {

storage/local/storage_test.go

@@ -145,7 +145,7 @@ func TestMatches(t *testing.T) {
 			matchers: metric.LabelMatchers{
 				newMatcher(metric.Equal, "all", "const"),
 				newMatcher(metric.NotEqual, "label1", "test_0"),
-				newMatcher(metric.Equal, "not_existant", ""),
+				newMatcher(metric.Equal, "not_existent", ""),
 			},
 			expected: fingerprints[10:],
 		},

storage/remote/client.go

@@ -40,7 +40,7 @@ func NewClient(address string, timeout time.Duration) (*Client, error) {
 		// grpc.Dial() returns immediately and doesn't error when the server is
 		// unreachable when not passing in the WithBlock() option. The client then
 		// will continuously try to (re)establish the connection in the background.
-		// So this will only return here if some other uncommon error occured.
+		// So this will only return here if some other uncommon error occurred.
 		return nil, err
 	}
 	return &Client{